import axios from 'axios'
import { MessageBox, Message } from 'element-ui'
import store from '@/store'
import { getToken } from '@/utils/auth'
//import NProgress from 'nprogress' // progress bar
//import 'nprogress/nprogress.css' // progress bar style
import { Loading } from 'element-ui';

// create an axios instance
const service = axios.create({
  baseURL: process.env.VUE_APP_BASE_API, // url = base url + request url
  //baseURL : "http://localhost:8287",
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000, // request timeout
  method:'POST',
})

// 定义 loading
let loading
// loading开始 方法
function startLoading() {
  // element-ui loading 服务调用方式
  loading = Loading.service({
    lock: true,
    text: '请等待...',
    spinner: 'el-icon-loading',  // 自定义图标
    background: 'rgba(0, 0, 0, 0.7)'
  })
}
// loading结束 方法
function endLoading() {
  loading.close()
}

// request interceptor
service.interceptors.request.use(
  config => {
    // do something before request is sent
    //NProgress.start()
    startLoading();

    if (store.getters.token) {
      // let each request carry token
      // ['X-Token'] is a custom headers key
      // please modify it according to the actual situation
      config.headers['X-Token'] = getToken()
    }
    return config
  },
  error => {
    // do something with request error
    console.log(error) // for debug
    endLoading()
    return Promise.reject(error)
  }
)

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
  */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    //NProgress.done()
    endLoading()

    const res = response.data
    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== '200') {
      Message({
        message: res.msg || 'Error',
        type: 'error',
        duration: 5 * 1000
      })

      // 50008: Illegal token; 50012: Other clients logged in; 50014: Token expired;
      if (res.code === '401') {
        // to re-login
        store.dispatch('user/resetToken').then(() => {
          location.reload()
        })
      }
      return Promise.reject(new Error(res.msg || 'Error'))
    } else {
      return res
    }
  },
  error => {
    endLoading();
    console.log('err' + error) // for debug
    Message({
      message: error.message,
      type: 'error',
      duration: 5 * 1000
    })
    return Promise.reject(error)
  }
)

export default service
